This waterproof temperature sensor kit is uses the DS18B20 probe with a resister module making it easy to connect to an Arduino.

The DS18B20 temperature sensor provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor. Compatible with 3V to 5.5V systems.

Specification

Operating voltage: 3.0~ 5.5V

±0.5°C Accuracy from -10°C to +85°C

Usable temperature range: -55 to 125°C (-67°F to +257°F)

9 to 12 bit selectable resolution

Uses 1-Wire interface- requires only one digital pin for communication